What if the road is not wide enough for a bike and car to travel on side by side? Are bikes not allowed on that stretch of road? Or cars? Are there different times of day when one or the other is allowed? How does that situation play out? What if there is debris from a prior traffic collision in the area that was pushed onto the side of the road forcing the cyclist to slow the flow of traffic to navigate around the wreckage? What if there is a broken down car on the side of the road. Then, the motorist would be obstructing the cyclist who would have to obstruct another motorist.